Answer:
Explanation:
k = Coulomb constant =
v = Velocity of electron =
q = Charge of electron =
m = Mass of electron =
r = Radius
The electrical and centripetal force will balance each other
The radius of the orbital is
Unpolarized light is incident upon two polarization filters that do not have their transmission axes aligned. If 38 % of the lig
ht passes through this combination of filters, what is the angle between the transmission axes of the filters
1 answer:
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Answer:
Having a bigger angle above the horizontal
Explanation:
Applying the energy conservation theorem:
The kinetic energy is reduced because of the work done by the friction force.
The friction force is given by:
so the friction force depends on the Normal force, because the slide has an angle the normal force is given by:
So when the angle of the slide is bigger, the friction force decreases, for example:
for 45 degrees:
for 75 degrees:
as you can see if the angle is bigger above the horizontal, the friction force is reduced and so the work done by that force. We didn't have to change the height of the slide, so the potential gravitational energy remains the same.
Answer:
Explanation:
Time can be found by dividing the distance by the speed.
The distance is 45 meters and the speed is 12.5 meters per second.
Divide. Note that the meters, or "m" will cancel each other out.
It will take the dolphin 3.6 seconds to swim a distance of 45 meters are 12.5 meters per second.